Which of the following groups do not constitute a food chain?\ i) Wolf, rabbit, grass, lion\ ii) P

Question

Which of the following groups do not constitute a food chain?\ i) Wolf, rabbit, grass, lion\ ii) Plankton, man, grasshopper, fish\ iii) Hawk, grass, snake, grasshopper, frog\ iv) Grass, snake, wolf, tiger\

Professor PC Thomas Classes · Answer

(d): Planktons and fish are present in an aquatic habitat while man and grasshopper are part of terrestrial food chain. Hence, food chain (ii) is not complete. Primary consumer of grass i.e., herbivores are not present in the fourth food chain therefore is incomplete.